"Artificial Studios (recently purchased by Epic Games) today announced the development of Monster Madness, 'a four-player cooperative online-enabled action game for the PC and Xbox 360.' The following are clips from the fact sheet:

4-Player Cooperative Online ActionMix local & online players as you try to survive the Monster's invasion. Each player character has unique items and affects how the story plays out.

3D Top-Down ShootingAim in any direction, including up and down. Hordes of Monsters attack you from all sides, but you can also utilize quick dodge-moves to avoid them!

Advanced PhysicsMonster Madness is designed specifically for the Ageia NovodeX Physics platform, including use of the PhysX PPU. Interact with the environments physics to give yourself an advantage, such as creating barrides or throwing large objects."